/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.csp.sentinel.demo.cluster;

import com.alibaba.csp.sentinel.cluster.server.ClusterTokenServer;
import com.alibaba.csp.sentinel.cluster.server.SentinelDefaultTokenServer;
import com.alibaba.csp.sentinel.cluster.server.config.ClusterServerConfigManager;
import com.alibaba.csp.sentinel.cluster.server.config.ServerTransportConfig;

import java.util.Collections;

/**
 * 独立部署一台机器进行集群的 QPS 统计,业务系统接口在被进行访问的时候
 * 请求进入资源点，会经过流控的 slot ,此时会开启集群流控，他们会把这次请求通过 netty 进行网络通信
 * 把每一次请求都传输到我们独立部署的 server 上来做限流，一般不会使用内嵌模式
 *
 * <p>Cluster server demo (alone mode).</p>
 * <p>Here we init the cluster server dynamic data sources in
 * {@link com.alibaba.csp.sentinel.demo.cluster.init.DemoClusterServerInitFunc}.</p>
 *
 * @author Eric Zhao
 * @since 1.4.0
 */
public class ClusterServerDemo {

    public static void main(String[] args) throws Exception {
        /**
         *  非内嵌模式，启动一个 netty server
         *  Not embedded mode by default (alone mode).
         */
        ClusterTokenServer tokenServer = new SentinelDefaultTokenServer();

        // A sample for manually load config for cluster server.
        // It's recommended to use dynamic data source to cluster manage config and rules.
        // See the sample in DemoClusterServerInitFunc for detail.
        ClusterServerConfigManager.loadGlobalTransportConfig(new ServerTransportConfig()
            .setIdleSeconds(600) // 如果 netty 长连接空闲了 10分钟，那么这个连接就应该断开
            .setPort(11111));

        ClusterServerConfigManager.loadServerNamespaceSet(Collections.singleton(DemoConstants.APP_NAME));

        /**
         * {@link SentinelDefaultTokenServer#start()}
         *
         * Start the server.
         */
        tokenServer.start();
    }
}
